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| author | Pascal van Leeuwen <pascalvanl@gmail.com> | 2019-09-13 12:10:37 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-10-04 18:06:04 +0300 |
| commit | 6f2d14288ec1d659503c37e965de825131462a1a (patch) | |
| tree | 0bc3114766f1a29001042d840f5a6825e0e193e6 /drivers/crypto/inside-secure | |
| parent | fcca797d2adb83be198db8530f1fd4f6c60e81fe (diff) | |
| download | linux-6f2d14288ec1d659503c37e965de825131462a1a.tar.xz | |
crypto: inside-secure - Add support for the cbc(sm4) skcipher
This patch adds support for SM4 in CBC mode, i.e. skcipher cbc(sm4).
changes since v1:
- nothing
Signed-off-by: Pascal van Leeuwen <pvanleeuwen@verimatrix.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/inside-secure')
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel.c | 1 | ||||
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel.h | 1 | ||||
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel_cipher.c | 36 |
3 files changed, 38 insertions, 0 deletions
diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c index 0ac3b45b7b69..ac1d5b89cd8d 100644 --- a/drivers/crypto/inside-secure/safexcel.c +++ b/drivers/crypto/inside-secure/safexcel.c @@ -1179,6 +1179,7 @@ static struct safexcel_alg_template *safexcel_algs[] = { &safexcel_alg_sm3, &safexcel_alg_hmac_sm3, &safexcel_alg_ecb_sm4, + &safexcel_alg_cbc_sm4, }; static int safexcel_register_algorithms(struct safexcel_crypto_priv *priv) diff --git a/drivers/crypto/inside-secure/safexcel.h b/drivers/crypto/inside-secure/safexcel.h index 3a91cc26ed19..7c63590f4e5d 100644 --- a/drivers/crypto/inside-secure/safexcel.h +++ b/drivers/crypto/inside-secure/safexcel.h @@ -880,5 +880,6 @@ extern struct safexcel_alg_template safexcel_alg_chachapoly_esp; extern struct safexcel_alg_template safexcel_alg_sm3; extern struct safexcel_alg_template safexcel_alg_hmac_sm3; extern struct safexcel_alg_template safexcel_alg_ecb_sm4; +extern struct safexcel_alg_template safexcel_alg_cbc_sm4; #endif diff --git a/drivers/crypto/inside-secure/safexcel_cipher.c b/drivers/crypto/inside-secure/safexcel_cipher.c index 4d7492455c7c..f5d39e1a74e7 100644 --- a/drivers/crypto/inside-secure/safexcel_cipher.c +++ b/drivers/crypto/inside-secure/safexcel_cipher.c @@ -2707,3 +2707,39 @@ struct safexcel_alg_template safexcel_alg_ecb_sm4 = { }, }, }; + +static int safexcel_skcipher_sm4_cbc_cra_init(struct crypto_tfm *tfm) +{ + struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm); + + safexcel_skcipher_cra_init(tfm); + ctx->alg = SAFEXCEL_SM4; + ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CBC; + return 0; +} + +struct safexcel_alg_template safexcel_alg_cbc_sm4 = { + .type = SAFEXCEL_ALG_TYPE_SKCIPHER, + .algo_mask = SAFEXCEL_ALG_SM4, + .alg.skcipher = { + .setkey = safexcel_skcipher_sm4_setkey, + .encrypt = safexcel_sm4_blk_encrypt, + .decrypt = safexcel_sm4_blk_decrypt, + .min_keysize = SM4_KEY_SIZE, + .max_keysize = SM4_KEY_SIZE, + .ivsize = SM4_BLOCK_SIZE, + .base = { + .cra_name = "cbc(sm4)", + .cra_driver_name = "safexcel-cbc-sm4", + .cra_priority = SAFEXCEL_CRA_PRIORITY, + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_KERN_DRIVER_ONLY, + .cra_blocksize = SM4_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct safexcel_cipher_ctx), + .cra_alignmask = 0, + .cra_init = safexcel_skcipher_sm4_cbc_cra_init, + .cra_exit = safexcel_skcipher_cra_exit, + .cra_module = THIS_MODULE, + }, + }, +}; |